/**
 * YueTong 专用节点清理脚本
 * 负责去掉“悦·”品牌前缀、钻石、专属/家宽等线路标识，以及压短 AI 解锁文案。
 * 按地区稳定归并后重新连续编号，避免专属/普通节点撞号。
 */
// noinspection JSUnusedGlobalSymbols
const COMMON_SCRIPT_URL = 'https://git.orionc.me/orion/script/raw/branch/main/substore/common.js';

async function loadRenameUtils() {
    if (typeof globalThis !== 'undefined' && globalThis.SubStoreRenameUtils) {
        return globalThis.SubStoreRenameUtils;
    }

    const cache = typeof scriptResourceCache !== 'undefined' ? scriptResourceCache : null;
    let script = cache && cache.get(COMMON_SCRIPT_URL);
    if (!script) {
        const response = await $substore.http.get({ url: COMMON_SCRIPT_URL });
        script = response && (response.body || response.data || response);
        if (cache) cache.set(COMMON_SCRIPT_URL, script);
    }

    new Function(String(script))();
    return globalThis.SubStoreRenameUtils;
}

async function operator(proxies) {
    const utils = await loadRenameUtils();
    const regionAliases = [
        ['Hong Kong', 'HK'],
        ['香港', 'HK'],
        ['HK', 'HK'],
        ['Japan', 'JP'],
        ['日本', 'JP'],
        ['JP', 'JP'],
        ['Singapore', 'SG'],
        ['新加坡', 'SG'],
        ['狮城', 'SG'],
        ['SG', 'SG'],
        ['Taiwan', 'TW'],
        ['台湾', 'TW'],
        ['台灣', 'TW'],
        ['TW', 'TW'],
        ['United States', 'US'],
        ['America', 'US'],
        ['USA', 'US'],
        ['美国', 'US'],
        ['美國', 'US'],
        ['美西', 'US'],
        ['美东', 'US'],
        ['美東', 'US'],
        ['US', 'US'],
        ['Korea', 'KR'],
        ['韩国', 'KR'],
        ['韓國', 'KR'],
        ['KR', 'KR'],
        ['United Kingdom', 'UK'],
        ['Britain', 'UK'],
        ['英国', 'UK'],
        ['英國', 'UK'],
        ['UK', 'UK'],
        ['Germany', 'DE'],
        ['德国', 'DE'],
        ['德國', 'DE'],
        ['DE', 'DE'],
        ['Netherlands', 'NL'],
        ['荷兰', 'NL'],
        ['荷蘭', 'NL'],
        ['NL', 'NL']
    ];
    const { regionCodeOf } = utils.createRegionResolver(regionAliases);

    const withFreshRegionSequence = (name, sequenceNumber) => {
        const { flag, text } = utils.splitLeadingFlag(name);
        const sequenceText = String(sequenceNumber);
        let core = text.trim();
        let feature = '';

        core = core.replace(/\s*AI\s*\d+(?!\d)(?!\s*(?:[xX倍]|\.\d))/, () => {
            feature = 'AI';
            return '';
        });
        if (!feature) {
            core = core.replace(/\s+AI\b|AI$/, () => {
                feature = 'AI';
                return '';
            });
        }

        core = core
            .replace(/\s*\d+(?!\d)(?!\s*(?:[xX倍]|\.\d))(?=\s|$)/, '')
            .replace(/\s{2,}/g, ' ');

        return utils.normalizeWhitespace(`${flag}${core}${sequenceText}${feature ? ` ${feature}` : ''}`);
    };

    const normalizedItems = proxies.map((proxy, originalIndex) => {
        if (typeof proxy.name !== 'string') {
            return {
                proxy,
                originalIndex,
                regionCode: ''
            };
        }

        proxy.name = proxy.name
            .replace(/悦[·・]\s*/g, '')
            .replace(/AI解锁/g, 'AI')
            .replace(/\s*(?:专属|家宽|高速|专线)(?:\s*(\d+)(?!\s*(?:[xX倍]|\.\d)))?/g, '$1')
            .replace(/💎/gu, '')
            .replace(/([\u4e00-\u9fff])AI\b/g, '$1 AI')
            .replace(/\s{2,}/g, ' ');
        proxy.name = utils.normalizeWhitespace(proxy.name);

        return {
            proxy,
            originalIndex,
            regionCode: regionCodeOf(proxy.name)
        };
    });

    const regionOrder = Object.create(null);
    const groupOrder = normalizedItems.map(item => {
        if (!item.regionCode) return item.originalIndex;
        if (regionOrder[item.regionCode] === undefined) {
            regionOrder[item.regionCode] = item.originalIndex;
        }
        return regionOrder[item.regionCode];
    });

    normalizedItems.sort((firstItem, secondItem) => {
        const firstGroupOrder = groupOrder[firstItem.originalIndex];
        const secondGroupOrder = groupOrder[secondItem.originalIndex];
        if (firstGroupOrder !== secondGroupOrder) return firstGroupOrder - secondGroupOrder;
        return firstItem.originalIndex - secondItem.originalIndex;
    });

    const regionCount = Object.create(null);
    return normalizedItems.map(item => {
        if (!item.regionCode) return item.proxy;

        regionCount[item.regionCode] = (regionCount[item.regionCode] || 0) + 1;
        item.proxy.name = withFreshRegionSequence(item.proxy.name, regionCount[item.regionCode]);
        return item.proxy;
    });
}